Hub



FIG. 1 is a front perspective view of the hub according to the present design;

FIG. 2 is a front elevational view of the hub of FIG. 1;

FIG. 3 is a rear elevational view of the hub of FIG. 1;

FIG. 4 is a left-side elevational view of the hub of FIG. 1;

FIG. 5 is a right-side elevational view of the hub of FIG. 1;

FIG. 6 is a top plan view of the hub of FIG. 1; and,

FIG. 7 is a bottom plan view of the hub of FIG. 1.

The broken lines in the figures illustrate portions of the hub that form no part of the claimed design. 

CLAIM The ornamental design for a hub, as shown and described. 